Tool chuck



FIG. 1 is a perspective view of a tool chuck in accordance with the new design;

FIG. 2 is a front view of the tool chuck of FIG. 1 , the rear view being a mirror image;

FIG. 3 is a left side view of the tool chuck of FIG. 1 , the right side being a mirror image;

FIG. 4 is a top plan view of the tool chuck of FIG. 1 ; and,

FIG. 5 is a bottom plan view of the tool chuck of FIG. 1 .

The even-length broken lines in the figures are directed to portions of the tool chuck that form no part of the claim. 

CLAIM The ornamental design for a tool chuck, as shown and described. 